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Cheap flights from Washington, D.C. Dulles Intl Airport to Brussels from $278

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. Dulles Intl Airport to Brussels departing on 2/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Washington, D.C. Dulles Intl Airport to Brussels

Cheap round-trip flights

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ITA Airways Logo
5:45 pm - 10:40 amIAD-BRU
11h 55m1 stop
ITA Airways Logo
6:55 pm - 3:40 pmBRU-IAD
25h 45m1 stop
$510ITA Airways
Find Deal
Tue, Mar 17 - Mon, Mar 23
Scandinavian Airlines Logo
8:20 pm - 2:35 pmIAD-BRU
12h 15m1 stop
Scandinavian Airlines Logo
10:20 am - 4:50 pmBRU-IAD
12h 30m1 stop
$512Scandinavian Airlines
Find Deal
Mon, Mar 30 - Wed, Apr 8
Icelandair Logo
8:40 pm - 11:55 amIAD-BRU
10h 15m1 stop
Icelandair Logo
12:50 pm - 7:30 pmBRU-IAD
11h 40m1 stop
$513Icelandair
Find Deal
Wed, Mar 18 - Thu, Mar 26
ITA Airways Logo
4:30 pm - 6:00 pmIAD-BRU
19h 30m1 stop
ITA Airways Logo
9:25 am - 2:40 pmBRU-IAD
35h 15m2 stops
$515ITA Airways
Find Deal
Sun, Apr 12 - Sat, Apr 18
Multiple Airlines Logo
7:40 pm - 10:30 pmIAD-BRU
20h 50m3 stops
Multiple Airlines Logo
9:55 pm - 6:30 pmBRU-IAD
26h 35m2 stops
$516Multiple Airlines
Find Deal
Wed, Jan 28 - Thu, Feb 12
Scandinavian Airlines Logo
12:23 pm - 2:30 pmIAD-BRU
20h 07m2 stops
Scandinavian Airlines Logo
3:10 pm - 6:50 pmBRU-IAD
33h 40m1 stop
$518Scandinavian Airlines
Find Deal
Mon, Jan 12 - Fri, Jan 16
Scandinavian Airlines Logo
8:30 pm - 2:30 pmIAD-BRU
12h 00m1 stop
Scandinavian Airlines Logo
10:20 am - 4:50 pmBRU-IAD
12h 30m1 stop
$519Scandinavian Airlines
Find Deal
Thu, Jan 8 - Wed, May 20
Icelandair Logo
7:40 pm - 11:55 amIAD-BRU
10h 15m1 stop
Icelandair Logo
12:50 pm - 6:30 pmBRU-IAD
11h 40m1 stop
$521Icelandair
Find Deal
Thu, Jan 15 - Thu, Jan 22
Multiple Airlines Logo
7:40 pm - 1:15 pmIAD-BRU
35h 35m3 stops
Multiple Airlines Logo
9:05 am - 6:30 pmBRU-IAD
15h 25m2 stops
$522Multiple Airlines
Find Deal
Sat, Jan 17 - Sat, Jan 24
Scandinavian Airlines Logo
8:30 pm - 7:50 pmIAD-BRU
17h 20m1 stop
Scandinavian Airlines Logo
10:20 am - 5:15 pmBRU-IAD
12h 55m1 stop
$524Scandinavian Airlines
Find Deal
Wed, Feb 11 - Mon, Feb 16

ITA Airways flights from Washington, D.C. Dulles Intl Airport to Brussels

Our best ITA Airways deals on Washington, D.C. Dulles Intl Airport to Brussels flight tickets
ITA Airways
Mar 17
IAD5:45 pmWashington, D.C. Dulles Intl
11h 55m
1 stop
BRU10:40 amBrussels Bruxelles-National
Mar 23
BRU6:55 pmBrussels Bruxelles-National
25h 45m
1 stop
IAD3:40 pmWashington, D.C. Dulles Intl
$510
Find similar
ITA Airways
Apr 12
IAD4:30 pmWashington, D.C. Dulles Intl
19h 30m
1 stop
BRU6:00 pmBrussels Bruxelles-National
Apr 18
BRU9:25 amBrussels Bruxelles-National
35h 15m
2 stops
IAD2:40 pmWashington, D.C. Dulles Intl
$515
Find similar
ITA Airways
Apr 10
IAD4:30 pmWashington, D.C. Dulles Intl
12h 10m
1 stop
BRU10:40 amBrussels Bruxelles-National
Apr 13
BRU6:55 pmBrussels Bruxelles-National
25h 45m
1 stop
IAD2:40 pmWashington, D.C. Dulles Intl
$534
Find similar

Icelandair flights from Washington, D.C. Dulles Intl Airport to Brussels

Our best Icelandair deals on Washington, D.C. Dulles Intl Airport to Brussels flight tickets
Icelandair
Dec 3
IAD7:40 pmWashington, D.C. Dulles Intl
10h 15m
1 stop
BRU11:55 amBrussels Bruxelles-National
Dec 12
BRU12:50 pmBrussels Bruxelles-National
11h 40m
1 stop
IAD6:30 pmWashington, D.C. Dulles Intl
$512
Find similar
Icelandair
Mar 18
IAD8:40 pmWashington, D.C. Dulles Intl
10h 15m
1 stop
BRU11:55 amBrussels Bruxelles-National
Mar 26
BRU12:50 pmBrussels Bruxelles-National
11h 40m
1 stop
IAD7:30 pmWashington, D.C. Dulles Intl
$513
Find similar
Icelandair
Jan 15
IAD7:40 pmWashington, D.C. Dulles Intl
10h 15m
1 stop
BRU11:55 amBrussels Bruxelles-National
Jan 22
BRU12:50 pmBrussels Bruxelles-National
11h 40m
1 stop
IAD6:30 pmWashington, D.C. Dulles Intl
$521
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Dulles Intl Airport to Brussels that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated November 26, 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Brussels that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Brussels

IAD - BRU

IADBRU

Washington, D.C. Dulles Intl

Tue 3/17

5:45 pm-10:40 am

1 stop11h 55m

Brussels Bruxelles-National

Mon 3/23

6:55 pm-3:40 pm

1 stop25h 45m

$510

Washington, D.C.Brussels

IAD - BRU

IADBRU

Washington, D.C. Dulles Intl

Mon 3/30

8:20 pm-2:35 pm

1 stop12h 15m

Brussels Bruxelles-National

Wed 4/8

10:20 am-4:50 pm

1 stop12h 30m

$512

Washington, D.C.Brussels

IAD - BRU

IADBRU

Washington, D.C. Dulles Intl

Wed 3/18

8:40 pm-11:55 am

1 stop10h 15m

Brussels Bruxelles-National

Thu 3/26

12:50 pm-7:30 pm

1 stop11h 40m

$513

Washington, D.C.Brussels

IAD - BRU

IADBRU

Washington, D.C. Dulles Intl

Sun 4/12

4:30 pm-6:00 pm

1 stop19h 30m

Brussels Bruxelles-National

Sat 4/18

9:25 am-2:40 pm

2 stops35h 15m

$515

Washington, D.C.Brussels

IAD - BRU

IADBRU

Washington, D.C. Dulles Intl

Wed 1/28

7:40 pm-10:30 pm

3 stops20h 50m

Brussels Bruxelles-National

Thu 2/12

9:55 pm-6:30 pm

2 stops26h 35m

$516

Washington, D.C.Brussels

IAD - BRU

IADBRU

Washington, D.C. Dulles Intl

Mon 1/12

12:23 pm-2:30 pm

2 stops20h 07m

Brussels Bruxelles-National

Fri 1/16

3:10 pm-6:50 pm

1 stop33h 40m

$518

Washington, D.C.Brussels

IAD - BRU

IADBRU

Washington, D.C. Dulles Intl

Thu 1/8

8:30 pm-2:30 pm

1 stop12h 00m

Brussels Bruxelles-National

Wed 5/20

10:20 am-4:50 pm

1 stop12h 30m

$519

Washington, D.C.Brussels

IAD - BRU

IADBRU

Washington, D.C. Dulles Intl

Thu 1/15

7:40 pm-11:55 am

1 stop10h 15m

Brussels Bruxelles-National

Thu 1/22

12:50 pm-6:30 pm

1 stop11h 40m

$521

Washington, D.C.Brussels

IAD - BRU

IADBRU

Washington, D.C. Dulles Intl

Sat 1/17

7:40 pm-1:15 pm

3 stops35h 35m

Brussels Bruxelles-National

Sat 1/24

9:05 am-6:30 pm

2 stops15h 25m

$522

Washington, D.C.Brussels

IAD - BRU

IADBRU

Washington, D.C. Dulles Intl

Wed 2/11

8:30 pm-7:50 pm

1 stop17h 20m

Brussels Bruxelles-National

Mon 2/16

10:20 am-5:15 pm

1 stop12h 55m

$524

Flights are sorted by cheapest round-trip flights first.

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See travel insights to Brussels from

How to get the cheapest flight ticket from Washington, D.C. Dulles Intl Airport to Brussels

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Brussels?

In general, September is the cheapest month to fly from Washington, D.C. Dulles Intl Airport to Brussels. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $622. If you are unable to visit Brussels during the month of September, then departing from Washington, D.C. Dulles Intl Airport during the month August is also very affordable. Most momondo users find prices during this month for around $674.

What is the cheapest day to depart on your flight to Brussels?

On average, the least expensive day to fly to Brussels from Washington, D.C. Dulles Intl Airport is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $1,061. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Sunday is the most expensive day to depart from Washington, D.C. Dulles Intl Airport because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,262.

What is the cheapest time of day to depart on your flight to Brussels?

According to our data, the cheapest time of day to fly to Brussels is at noon. momondo users have found flights departing from Washington, D.C. Dulles Intl Airport to Brussels at noon for as low as $668. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the afternoon are often more expensive with an average ticket price of $1,150.

What is the cheapest Washington, D.C. Dulles Intl to Brussels flight route?

Fly from Washington, D.C. Dulles Intl to Brussels Bruxelles-National for the best Washington, D.C. Dulles Intl - Brussels flight prices

How far in advance should I book a flight to Brussels?

You are more likely to see cheaper flights to Brussels from Washington, D.C. Dulles Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Brussels for around $819 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Brussels from Washington, D.C. Dulles Intl Airport for as low as $681 on momondo.

What cabin class options are available on Washington, D.C. Dulles Intl to Brussels flights?

There are 3 cabin classes available to choose from on Washington, D.C. Dulles Intl to Brussels flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Cheap Washington, D.C. Dulles Intl Airport to Brussels flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. Dulles Intl Airport to Brussels

Fastest flight time

7h 30m

Direct flights

Every day

Airports in Brussels

1 airport
The fastest flight from Washington, D.C. Dulles Intl Airport to Brussels takes 7h 30m
Direct flights go from Washington, D.C. Dulles Intl Airport to Brussels every day.
There is 1 airport near Brussels: Brussels Bruxelles-National (BRU)
Search flight deals

  • How far is Washington, D.C. Dulles Intl to Brussels by plane?

    There are 3874.4 mi between Washington, D.C. Dulles Intl and Brussels. Typically, this will take 10h 15m by plane in normal conditions.

  • When did momondo last update prices for flights from Washington, D.C. Dulles Intl Airport to Brussels?

    Prices for flights from Washington, D.C. Dulles Intl Airport to Brussels are refreshed on a daily basis.

  • How many operators does momondo search for flights from Washington, D.C. Dulles Intl Airport to Brussels?

  • How old do you have to be to fly from Washington, D.C. Dulles Intl Airport to Brussels?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. Dulles Intl Airport to Brussels.

  • What documentation or ID do you need to fly to Brussels?

    The necessary travel and health documents for your Brussels trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Washington, D.C. Dulles Intl Airport to Brussels

Compare and see reviews for airlines that fly from Washington, D.C. Dulles Intl Airport to Brussels with momondo
Airline
Rating
Free Cancellation
Price
Scandinavian AirlinesPriceFrom $419Free CancellationRating
7.4
1,589 reviews
Search Scandinavian Airlines flights
IcelandairPriceFrom $441Free CancellationRating
7.0
582 reviews
Search Icelandair flights
KLMPriceFrom $480Free CancellationRating
7.7
1,423 reviews
Search KLM flights
TAP AIR PORTUGALPriceFrom $480Free CancellationRating
7.1
2,075 reviews
Search TAP AIR PORTUGAL flights
DeltaPriceFrom $511Free CancellationRating
7.9
8,004 reviews
Search Delta flights
Aer LingusPriceFrom $539Free CancellationRating
7.2
1,382 reviews
Search Aer Lingus flights
Turkish AirlinesPriceFrom $540Free CancellationRating
7.3
4,063 reviews
Search Turkish Airlines flights
British AirwaysPriceFrom $555Free CancellationRating
6.7
7,539 reviews
Search British Airways flights
United AirlinesPriceFrom $596Free CancellationRating
7.4
9,050 reviews
Search United Airlines flights
Brussels AirlinesPriceFrom $633Free CancellationRating
7.2
370 reviews
Search Brussels Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to Brussels?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Washington, D.C. to Brussels for you.

Can I find flights from Washington, D.C. to Brussels with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Washington, D.C. to Brussels flights to just show those with flexible booking policies.

How can momondo help me find flights from Washington, D.C. to Brussels?

momondo helps you find the best flight between Washington, D.C. and Brussels by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Washington, D.C. to Brussels right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Brussels from Washington, D.C.. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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Find better results for your trip to Belgium

Fly into one of these airports located in Brussels

Airports listed have a maximum distance of 27.4 mi from Brussels
Brussels Bruxelles-National Airport
Charleroi Brussels Airport